Returning a Response

Status Code

After sending a request, you will receive a response that includes a status code, response header, and response body.

A status code is a group of digits, ranging from 1xx to 5xx. It indicates the status of a request. For more information, see Status Code.

If 201 is returned for calling the API used to create a product, the request is successful.

Response Header Field

Similar to a request, a response also has a header, for example, Content-Type.

For the API used to create a product, the platform will return a response containing message headers, for example, Content-Type and Date.

Response Body

The body of a response is often returned in structured format as specified in the Content-Type header field. The response body transfers content except the response header.

For the API used to create a product, the following message body is returned: The following is part of the response body for the API used to create a product:

{ 
  "product_id" : "5ba24f5ebbe8f56f5a14f605",
  "name" : "Thermometer",
  "device_type" : "Thermometer",
  "protocol_type" : "LWM2M",
  "data_format" : "binary",
  "manufacturer_name" : "ABC",
  "industry" : "smartCity",
  "description" : "this is a thermometer produced by Huawei",
   ......
}

If an error occurs during API calling, an error code and error description will be displayed. The following shows an error response body:

{   
    "error_msg": "The format of message is error", 
    "error_code": "IOTDA.013005" 
}

In the preceding information, error_code is an error code, and error_msg describes the error.